Top localization mechanism of bell folding tent frame

ABSTRACT

The present invention provides a top localization mechanism of bell folding tent, in which a top static rib-hub is located on the top center of the whole framework hinged with radial struts, a pole is connected to the bottom side of the top static rib-hub with the tip end in dead joint vertically, a low sliding rib-hub is fit on the pole in moving connection, said low sliding rib-hub is used for hinging to the radial foldable rib set; a spring is set up between the top static rib-hub and the sliding rib-hub, and is in compression state as folding up the tent frame. The top localization mechanism of bell folding tent not only provides a bigger inner space, but also facilitates to operate in pitch-up process saving labor.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a tent, and more particularly to anumbrella-style top localization mechanism of bell folding tent frame.

2. Description of Prior Art

In accordance with the conventional bell tent in umbrella-style, asshown in FIG. 1, a top rib-hub 1 is set upon the central tip end hingingto radial foldable rib set 2 including several folding member bars ineach, said member bars in each foldable rib set 2 are connected byconnectors one by one for facilitating to fold-up. Said top rib-hub 1 isfixed on the tip end of a pole 3, on which a low sliding rib-hub 4 isfit in moving connection, a radial struts 5 are used for connecting thelow sliding rib-hub 4 to the first segment of the folding rib set 2 inhinging connection with the both ends respectively. A spring 6 is put onthe stem of the pole 3 and set up between said top static rib-hub 1 andsaid low sliding rib-hub 4, so that the spring 6 is in compression stateas folding up, and as pitching up the tent, the radial rib set 2 isbraced up under the restoring force of the spring 6 automatically.

But in this case, the pole 3 and said struts 5 and the low slidingrib-hub 4 are below the foldable rib set 2 and covered in the insideoccupying a certain space of the tent so that the real valid space ofthe tent is reduced.

Referring to FIG. 2 and FIG. 3, another prior art is shown, in which thetop static rib-hub 1 is located on the central top hinged with thestruts 5, the pole 3 is connected to the bottom side of the top staticrib-hub 1 with the tip end in dead joint, as the same the low slidingrib-hub 4 is fit on the pole 3 in moving connection, said low slidingrib-hub 4 is used for hinging to the radial foldable rib set 2 includingseveral folding member bars in each, said member bars in each foldablerib set 2 are connected by connectors one by one for facilitating tofold-up. And the outer end of said struts 5 is hinged on the firstsegment of the foldable rib set 2. Spring 6 is put on the stem of thepole 3 and set up between said top static rib-hub 1 and said low slidingrib-hub 4, so that the spring 6 is always in stretching state whateverthe tent is pitched up or stroke up. On the other hand, an elastic pawl7 is built upon the pole 3 approaching to the bottom end, coordinatingto it, the low sliding rib-hub 4 has a locking hole 41 drilled on thelow portion for catching up said elastic pawl 7 to locate the lowsliding rib-hub 4 on the pole 3.

As the same, as folding up, just need to press down the elastic pawl 7locking on the locking hole 41 of the low sliding rib-hub 4 lightly torelease the lock so that the low sliding rib-hub 4 can be pushed upclosing all the radial foldable rib sets 2 to the pole 3; as pitching upthe tent frame, just need to pull down the low sliding rib-hub 4 alongthe pole 3 until the locking hole 41 of the low sliding rib-hub 4 islaunched by the elastic pawl 7, meanwhile cooperating to the struts 5hinged on the top static rib-hub 1, all the radial foldable rib sets 2are braced up. So the bell tent is to be pitched up or folded up easilyand simply, and the pitch-up tent is so stable under the supportingcoming from the struts 5, and the use function is fully brought up. Onthe other hand, the main supporting framework composed of the foldablerib sets 2 is below the struts 5, so that the pitch-up tent has a smoothinside surface in a full dome, and evidentially bigger space.

According to above description, we can find shortcoming existing in theconventional bell folding tent, such as because said spring 6 is set upbetween the top static rib-hub 1 and the low sliding rib-hub 4, andfixed on them with the both ends respectively, as in folding state, thelow sliding rib-hub 4 is pulled up so close to the top end by the spring6 that the user needs to exert bigger force to pull it down overcomingthe elastic force of the spring 6 until the locking hole 41 is launchedby the elastic pawl 7 as tending to pitching it up, therefore thisoperation will bring to inconvenient to the user.

OBJECTS AND SUMMARY OF THE INVENTION

It is therefore a main object of the present invention to provide a toplocalization mechanism of bell folding tent that not only provides abigger inner space, but also facilitates to operate in pitch-up processsaving labor.

For achieving the above-mentioned object, the present invention providesa resolution, in which a top static rib-hub is set upon the tip centerof the frame, and hinged to radial struts respectively, and fixed on thetip end of a pole holding a low sliding rib-hub on the stem vertically,and said low sliding rib-hub is hinged to a proper number of radialfoldable rib sets; wherein, said pole has a hollow inner and twoopposite guide slots, thereby setting a slider in the inner hollow ofthe pole, a set pin penetrates through the slider and said oppositeguide slots to be fixed on the low sliding rib-hub with the both ends; aspring is set up in the hollow inner of the pole between the top staticrib-hub and the slider, and is in compression state as folding up thetent frame.

Said pole has a location mechanism at the lower portion for locating thelow sliding rib-hub on.

As utilizing above-mentioned project, due to the struts on upper and themain framework on below, the pitch-up tent appears to smooth innersurface in a full dome with a bigger space. And because the spring is incompression state as the tent is in folding state, the low slidingrib-hub is located on a lower position under balance force coming fromthe spring, so that the user just need to hold two radial foldable ribsets to shake slightly, the low sliding rib-hub will slide down underthe restoring force coming from the spring to spread all the radialfoldable rib sets out, in this time, just pull the low sliding rib-hubdown continuously sliding along the pole lightly to get the lockingposition so that the elastic pawl launches into the locking hole in lockstate, meanwhile the whole tent frame is pitched up completely, the alloperation is easy and simple.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a scheme of the prior art.

FIG. 2 is an exploded view showing the pitching or striking structure ofthe upper portion of the prior art.

FIG. 3 is a scheme showing the combined upper portion and the tent inuse of FIG. 2.

FIG. 4 is an exploded view of the present invention.

FIG. 5 is a scheme of the present invention.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

Referring to FIG. 4 and FIG. 5, a top localization mechanism of bellfolding tent frame provided by the present invention is shown, in whicha top static rib-hub 1 is located on the top center of the wholeframework hinged with radial struts 5, a pole 3 is connected to thebottom side of the top static rib-hub 1 with the tip end in dead jointvertically, a low sliding rib-hub 4 is fit on the pole 3 in movingconnection, said low sliding rib-hub 4 is used for hinging to the radialfoldable rib set 2 including several folding member bars in each, saidmember bars in each foldable rib set 2 are connected by connectors oneby one for facilitating to fold-up.

A spring 6 is set up between the top static rib-hub 1 and the slidingrib-hub 4, and is in compression state as folding up the tent frame.

Wherein, said pole 3 has a hollow inner and two opposite guide slots 31,thereby setting a slider 32 in the inner hollow of the pole 3, a set pin33 penetrates through the slider 32 and said opposite guide slots 31 tobe fixed on the low sliding rib-hub 4 with the both ends; the spring 6is set up in the hollow inner of the pole 3 between the top staticrib-hub 1 and the slider 32.

On the other hand, said pole 3 has a location mechanism at the lowerportion for locating the low sliding rib-hub 4 on, said locationmechanism can be an elastic hook set A, in which a pawl 7 is extendedout from a hole of the pole 3 approaching the bottom side, andcoordinating to it, the low sliding rib-hub 4 has a locking hole 41drilled on the low portion for catching up said elastic pawl 7 to locatethe low sliding rib-hub 4 on the pole 3, for facilitating to release thepawl 7, a button 42 is built upon the outside of the locking hole 41facing to it exactly.

Because the spring 6 is in compression state as the tent is in foldingstate, the low sliding rib-hub 4 is located on a lower position underbalance force coming from the spring 6, so that the user just need tohold two radial foldable rib sets to shake slightly, the low slidingrib-hub 4 will slide down under the restoring force coming from thespring 6 to spread all the radial foldable rib sets 2 out, in this time,just pull the low sliding rib-hub 4 down continuously sliding along thepole 3 lightly to get the locking position so that the elastic pawl 7launches into the locking hole 41 in lock state, meanwhile the wholetent frame is pitched up completely, the all operation is easy andsimple.

1. A top localization mechanism of bell folding tent frame, in which atop static rib-hub is set upon the tip center of the frame, and hingedto radial struts respectively, and fixed on the tip end of a poleholding a low sliding rib-hub on the stem vertically, and said lowsliding rib-hub is hinged to a proper number of radial foldable ribsets; wherein, said pole has a hollow inner and two opposite guideslots, thereby setting a slider in the inner hollow of the pole, a setpin penetrates through the slider and said opposite guide slots to befixed on the low sliding rib-hub with the both ends; a spring is set upin the hollow inner of the pole between the top static rib-hub and theslider, and is in compression state as folding up the tent frame.
 2. Atop localization mechanism of bell folding tent as claimed in claim 1,wherein said pole has a location mechanism at the lower portion forlocating the low sliding rib-hub on.